Verde Marinace Granite
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Synonyms: Calypso Green, Colipso Green, Green Marinace, Marinace, Marinace Green, Marinace Verde, Marince Verde, Mosaico Nativo, Verde Marinachi
Location: Verde Marinace granite is quarried at quarry RN 000080, Sitio Bela Vista km 14, Oliveira dos Brejinhos, Bahia, Brazil.
Description: Verde Marinace granite is a greenish polygenetic conglomerate with grey-pink cobbles in green-grey groundmass, transformed by metamorphism. This stone internationally may be nominated as a granite but in the area of application of the European Standard we are awaiting clarification but is most likely a Meta Conglomerate.
The veining and colour varies considerably and a small sample of Verde Marinace granite may not be representative of the whole slab therefore swatch samples must be approved for large projects to ensure that the blocks are all extracted from the same quarry face for matching purposes. Ideal for both interior and exterior use, Verde Marinace granite is frost free and polish constant.
Mineral Composition: In general 40% pebbles in 60% groundmass however Brazilian sources say Pebbles - 60%,
Quartz/Feldspathic Rock (Granitoid) Quartz Feldspar Matrix - 20%, Quartz and Feldspars Others - 20%, Epidote, Actinolite, Carbonate, Garnet, Opaque Minerals, Zircon.
Technical and Physical Characteristics:
Compression tensile strength: 1920 kg/cm2
Tensile strength after freeze-thaw cycles: 1810 kg/cm2
Water imbibition coefficient: 0,001500
Mass by unit of volume: 2720 kg/m3
Granite: Granite is a common and widely occurring type of intrusive, felsic, igneous rock. Granites are usually medium to coarse grained, occasionally with some individual crystals larger than the groundmass forming a rock known as porphyry. Granites can be pink to dark grey or even black, depending on their chemistry and mineralogy.
Gneiss: A common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. Gneissic rocks are usually medium to coarse-foliated and largely recrystallized but do not carry large quantities of micas, chlorite or other platy minerals. Gneisses that are metamorphosed igneous rocks or their equivalent are termed granite gneisses, diorite gneisses, etc.